EP 0488399 B1 19970129 - A telephone subscriber accommodation system in a broadband network
Title (en)
A telephone subscriber accommodation system in a broadband network
Title (de)
Telefonteilnehmeranpassungssystem in einem Breitbandnetz
Title (fr)
Système d'adaptation pour un abonné téléphonique dans un réseau à large bande
Publication
Application
Priority
JP 34014190 A 19901130
Abstract (en)
[origin: EP0488399A2] On receiving voice data from a subscriber accommodated in a broadband network (11), a terminal adaptor separately puts the voice data in cells in 8-bit units every 125 mu s separately, and transmits the cells by a remote switching unit (21) in the broadband network (11) to subscriber terminal equipment (27). The subscriber terminal equipment accommodates and processes each item of 8-bit data in 24 channels in the PCM format, puts in cells the PCM-formatted data in 24 channels, and sends the cells sequentially to a broadband network transmission line through the remote switching unit (21). On receiving the above described data in cells, an adaptor (13) provided between the broadband network (11) and an existing telephone network (12) converts the data to the PCM transmission format, and sends them to the existing telephone network (12) after adding a signaling bit to them. <IMAGE>
IPC 1-7
IPC 8 full level
H04L 12/66 (2006.01); H04L 12/951 (2013.01); H04L 29/06 (2006.01); H04L 47/43 (2022.01); H04M 3/00 (2006.01); H04Q 11/04 (2006.01); H04L 12/56 (2006.01)
CPC (source: EP US)
H04Q 11/0478 (2013.01 - EP US); H04L 2012/5614 (2013.01 - EP US); H04L 2012/5672 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0488399 A2 19920603; EP 0488399 A3 19921202; EP 0488399 B1 19970129; CA 2056652 A1 19920531; CA 2056652 C 19980203; DE 69124483 D1 19970313; DE 69124483 T2 19970612; JP 2890348 B2 19990510; JP H04207839 A 19920729; US 5521924 A 19960528
DOCDB simple family (application)
EP 91120583 A 19911129; CA 2056652 A 19911129; DE 69124483 T 19911129; JP 34014190 A 19901130; US 38422495 A 19950206